2 /**************************************************************************
3 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * Author: The ALICE Off-line Project. *
6 * Contributors are mentioned in the code where appropriate. *
8 * Permission to use, copy, modify and distribute this software and its *
9 * documentation strictly for non-commercial purposes is hereby granted *
10 * without fee, provided that the above copyright notice appears in all *
11 * copies and that both the copyright notice and this permission notice *
12 * appear in the supporting documentation. The authors make no claims *
13 * about the suitability of this software for any purpose. It is *
14 * provided "as is" without express or implied warranty. *
15 **************************************************************************/
18 /*********************************************************************
19 * T0 reconstruction and filling ESD
20 * - reconstruct mean time (interation time)
23 ********************************************************************/
25 #include <AliESDEvent.h>
27 #include "AliT0RecPoint.h"
28 #include "AliRawReader.h"
29 #include "AliT0RawReader.h"
30 #include "AliT0digit.h"
31 #include "AliT0Reconstructor.h"
32 #include "AliT0Parameters.h"
33 #include "AliT0Calibrator.h"
34 #include "AliESDfriend.h"
35 #include "AliESDTZEROfriend.h"
41 #include <Riostream.h>
43 ClassImp(AliT0Reconstructor)
45 AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
63 fParam = AliT0Parameters::Instance();
66 for (Int_t i=0; i<24; i++){
67 TGraph* gr = fParam ->GetAmpLEDRec(i);
68 if (gr) fAmpLEDrec.AddAtAndExpand(gr,i) ;
69 TGraph* gr1 = fParam ->GetAmpLED(i);
70 if (gr1) fAmpLED.AddAtAndExpand(gr1,i) ;
71 TGraph* gr2 = fParam ->GetQTC(i);
72 if (gr2) fQTC.AddAtAndExpand(gr2,i) ;
75 fLatencyL1 = fParam->GetLatencyL1();
76 fLatencyL1A = fParam->GetLatencyL1A();
77 fLatencyL1C = fParam->GetLatencyL1C();
78 fLatencyHPTDC = fParam->GetLatencyHPTDC();
79 AliDebug(10,Form(" LatencyL1 %f latencyL1A %f latencyL1C %f latencyHPTDC %f \n",fLatencyL1, fLatencyL1A, fLatencyL1C, fLatencyHPTDC));
81 // fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
82 //fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
85 fCalib = new AliT0Calibrator();
86 fESDTZEROfriend = new AliESDTZEROfriend();
90 //_____________________________________________________________________________
91 void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
94 // T0 digits reconstruction
95 Int_t refAmp = GetRecoParam()->GetRefAmp();
97 TArrayI * timeCFD = new TArrayI(24);
98 TArrayI * timeLED = new TArrayI(24);
99 TArrayI * chargeQT0 = new TArrayI(24);
100 TArrayI * chargeQT1 = new TArrayI(24);
103 Float_t channelWidth = fParam->GetChannelWidth() ;
104 Float_t meanVertex = fParam->GetMeanVertex();
105 Float_t c = 0.0299792; // cm/ps
106 Double32_t vertex = 9999999;
107 Double32_t timeDiff=999999, meanTime=999999, timeclock=999999;
110 AliDebug(1,Form("Start DIGITS reconstruction "));
113 TBranch *brDigits=digitsTree->GetBranch("T0");
114 AliT0digit *fDigits = new AliT0digit() ;
116 brDigits->SetAddress(&fDigits);
118 AliError(Form("EXEC Branch T0 digits not found"));
122 digitsTree->GetEvent(0);
123 digitsTree->GetEntry(0);
124 brDigits->GetEntry(0);
125 fDigits->GetTimeCFD(*timeCFD);
126 fDigits->GetTimeLED(*timeLED);
127 fDigits->GetQT0(*chargeQT0);
128 fDigits->GetQT1(*chargeQT1);
129 Int_t onlineMean = fDigits->MeanTime();
132 for (Int_t i=0; i<5; i++) tr[i]=false;
134 Double32_t besttimeA=999999;
135 Double32_t besttimeC=999999;
136 Int_t pmtBestA=99999;
137 Int_t pmtBestC=99999;
139 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
140 clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
142 Float_t time[24], adc[24];
143 for (Int_t ipmt=0; ipmt<24; ipmt++) {
144 if(timeCFD->At(ipmt)>0 ){
145 if(( chargeQT1->At(ipmt) - chargeQT0->At(ipmt))>0)
146 adc[ipmt] = chargeQT1->At(ipmt) - chargeQT0->At(ipmt);
150 // time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, adc[ipmt], timeCFD->At(ipmt)) ;
152 Double_t sl = Double_t(timeLED->At(ipmt) - timeCFD->At(ipmt));
153 time[ipmt] = fCalib-> WalkCorrection( refAmp,ipmt, Int_t(sl), timeCFD->At(ipmt) ) ;
154 AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
155 ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
157 Double_t ampMip =((TGraph*)fAmpLED.At(ipmt))->Eval(sl);
158 Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]);
159 AliDebug(10,Form(" Amlitude in MIPS LED %f , QTC %f in channels %i\n ",ampMip,qtMip, adc[ipmt]));
161 frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
162 frecpoints->SetAmp(ipmt, Float_t( ampMip)); //for cosmic &pp beam
163 frecpoints->SetAmpLED(ipmt, Float_t(qtMip));
172 for (Int_t ipmt=0; ipmt<12; ipmt++){
173 if(time[ipmt] > 1 ) {
174 if(time[ipmt]<besttimeC){
175 besttimeC=time[ipmt]; //timeC
180 for ( Int_t ipmt=12; ipmt<24; ipmt++){
182 if(time[ipmt]<besttimeA) {
183 besttimeA=time[ipmt]; //timeA
187 if(besttimeA < 999999) {
188 frecpoints->SetTimeBestA(Int_t(besttimeA *channelWidth));
191 if( besttimeC < 999999 ) {
192 frecpoints->SetTimeBestC(Int_t(besttimeC *channelWidth));
195 AliDebug(10,Form(" besttimeA %f ch, besttimeC %f ch",besttimeA, besttimeC));
196 if(besttimeA <999999 && besttimeC < 999999 ){
197 // timeDiff = (besttimeC - besttimeA)*channelWidth;
198 timeDiff = (besttimeA - besttimeC)*channelWidth;
199 meanTime = (besttimeA + besttimeC)/2;// * channelWidth);
200 timeclock = meanTime *channelWidth ;
201 vertex = meanVertex - c*(timeDiff)/2.;// + (fdZonA - fdZonC)/2;
204 frecpoints->SetVertex(vertex);
205 frecpoints->SetMeanTime(meanTime);
206 frecpoints->SetT0clock(timeclock);
207 frecpoints->SetT0Trig(tr);
209 AliInfo(Form("T0 triggers %d %d %d %d %d",tr[0],tr[1],tr[2],tr[3],tr[4]));
212 frecpoints->SetOnlineMean(Int_t(onlineMean));
213 AliDebug(10,Form(" timeDiff %i #channel, meanTime %i #channel, vertex %f cm online mean %i timeclock %i ps",timeDiff, meanTime,vertex, Int_t(onlineMean), timeclock));
219 clustersTree->Fill();
228 //_______________________________________________________________________
230 void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
234 // reference amplitude and time ref. point from reco param
236 Int_t refAmp = GetRecoParam()->GetRefAmp();
237 Int_t refPoint = GetRecoParam()->GetRefPoint();
239 Int_t allData[110][5];
241 Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24];
242 Double32_t timeDiff=999999, meanTime=999999, timeclock=999999;
243 Float_t c = 29.9792458; // cm/ns
244 Double32_t vertex = 9999999;
246 // Float_t meanVertex = fParam->GetMeanVertex();
247 Float_t meanVertex = 0;
248 for (Int_t i0=0; i0<105; i0++)
250 for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0;
253 Double32_t besttimeA=9999999;
254 Double32_t besttimeC=9999999;
255 Int_t pmtBestA=99999;
256 Int_t pmtBestC=99999;
258 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
260 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
262 AliDebug(10," before read data ");
263 AliT0RawReader myrawreader(rawReader);
265 UInt_t type =rawReader->GetType();
267 if (!myrawreader.Next())
268 AliDebug(1,Form(" no raw data found!!"));
271 if(type == 7) { //only physics
272 for (Int_t i=0; i<105; i++) {
273 for (Int_t iHit=0; iHit<5; iHit++)
275 allData[i][iHit] = myrawreader.GetData(i,iHit);
280 ref = allData[refPoint][0]-5000;
282 Float_t channelWidth = fParam->GetChannelWidth() ;
284 // Int_t meanT0 = fParam->GetMeanT0();
287 for (Int_t in=0; in<12; in++)
289 timeCFD[in] = allData[in+1][0] ;
290 timeCFD[in+12] = allData[in+56+1][0] ;
291 timeLED[in] = allData[in+12+1][0] ;
292 timeLED[in+12] = allData[in+68+1][0] ;
293 AliDebug(10, Form(" readed i %i cfdC %i cfdA %i ledC %i ledA%i ",
294 in, timeCFD[in],timeCFD[in+12],timeLED[in],
298 for (Int_t in=0; in<12; in++)
300 chargeQT0[in]=allData[2*in+25][0];
301 chargeQT1[in]=allData[2*in+26][0];
304 for (Int_t in=12; in<24; in++)
306 chargeQT0[in]=allData[2*in+57][0];
307 chargeQT1[in]=allData[2*in+58][0];
310 // } //cosmic with physics event
311 for (Int_t in=0; in<24; in++)
312 AliDebug(10, Form(" readed Raw %i %i %i %i %i",
313 in, timeLED[in],timeCFD[in],chargeQT0[in],chargeQT1[in]));
314 onlineMean = allData[49][0];
316 Double32_t time[24], adc[24], noncalibtime[24];
317 for (Int_t ipmt=0; ipmt<24; ipmt++) {
318 if(timeCFD[ipmt]>0 && timeLED[ipmt]>0){
321 if(( chargeQT0[ipmt] - chargeQT1[ipmt])>0) {
322 adc[ipmt] = chargeQT0[ipmt] - chargeQT1[ipmt];
328 // time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, adc[ipmt], timeCFD[ipmt] ) ;
330 Double_t sl = timeLED[ipmt] - timeCFD[ipmt];
331 time[ipmt] = fCalib-> WalkCorrection( refAmp,ipmt, Int_t(sl), timeCFD[ipmt] ) ;
332 AliDebug(5,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
333 ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
334 Double_t ampMip =( (TGraph*)fAmpLED.At(ipmt))->Eval(sl);
335 Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]);
336 AliDebug(0,Form(" Amlitude in MIPS LED %f ; QTC %f; in channels %i\n ",ampMip,qtMip, adc[ipmt]));
339 frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
340 // frecpoints->SetTime(ipmt,Double32_t(timeCFD[ipmt]));
341 frecpoints->SetAmpLED(ipmt, Double32_t( qtMip)); //for cosmic &pp beam
342 frecpoints->SetAmp(ipmt, Double32_t(ampMip));
343 noncalibtime[ipmt]= Double32_t (timeCFD[ipmt]);
349 noncalibtime[ipmt] = 0;
352 fESDTZEROfriend->SetT0timeCorr(noncalibtime) ;
353 for (Int_t ipmt=0; ipmt<12; ipmt++){
355 && (timeLED[ipmt] - timeCFD[ipmt])<550 )
357 if(time[ipmt]<besttimeC){
358 besttimeC=time[ipmt]; //timeC
363 for ( Int_t ipmt=12; ipmt<24; ipmt++)
366 && (timeLED[ipmt] - timeCFD[ipmt])<550 )
368 if(time[ipmt]<besttimeA) {
369 besttimeA=time[ipmt]; //timeA
374 if(besttimeA < 999999)
375 frecpoints->SetTimeBestA(besttimeA * channelWidth - 1000.*fLatencyHPTDC + 1000.*fLatencyL1A);
376 if( besttimeC < 999999 )
377 frecpoints->SetTimeBestC(besttimeC * channelWidth - 1000.*fLatencyHPTDC +1000.*fLatencyL1C);
378 AliDebug(10,Form(" pmtA %i besttimeA %f ps, pmtC %i besttimeC %f ps",
379 pmtBestA,besttimeA, pmtBestC, besttimeC));
380 if(besttimeA <999999 && besttimeC < 999999 ){
381 timeDiff = ( besttimeA - besttimeC)* 0.001* channelWidth + fLatencyL1A - fLatencyL1C;
382 timeclock = channelWidth * Float_t( besttimeA+besttimeC)/2. - 1000.*fLatencyHPTDC + 1000.*fLatencyL1;
383 meanTime = (besttimeA+besttimeC-2.*Float_t(ref))/2.;
384 vertex = meanVertex - c*(timeDiff)/2. ; //+ (fdZonA - fdZonC)/2;
387 AliDebug(5,Form(" timeDiff %f #channel, meanTime %f #channel, TOFmean%f vertex %f cm meanVertex %f online mean %i \n",timeDiff, meanTime,timeclock, vertex,meanVertex, onlineMean));
388 frecpoints->SetT0clock(timeclock);
389 frecpoints->SetVertex(vertex);
390 frecpoints->SetMeanTime(meanTime);
391 frecpoints->SetOnlineMean(Int_t(onlineMean));
395 Int_t trchan[5]= {50,51,52,55,56};
396 for (Int_t i=0; i<5; i++) tr[i]=false;
397 for (Int_t itr=0; itr<5; itr++) {
398 if(allData[trchan[itr]][0]>0) tr[itr]=true;
399 frecpoints->SetT0Trig(tr);
401 } // if (else )raw data
403 if(frecpoints) delete frecpoints;
407 //____________________________________________________________
409 void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const
412 /***************************************************
413 Resonstruct digits to vertex position
414 ****************************************************/
416 AliDebug(1,Form("Start FillESD T0"));
417 Float_t channelWidth = fParam->GetChannelWidth() ;
418 Float_t c = 29.9792458; // cm/ns
419 Float_t currentVertex=0, shift=0;
421 const AliESDVertex* vertex = pESD->GetPrimaryVertex();
422 if (!vertex) vertex = pESD->GetPrimaryVertexSPD();
423 if (!vertex) vertex = pESD->GetPrimaryVertexTPC();
424 if (!vertex) vertex = pESD->GetVertex();
427 AliDebug(2, Form("Got %s (%s) from ESD: %f",
428 vertex->GetName(), vertex->GetTitle(), vertex->GetZ()));
429 currentVertex = vertex->GetZ();
431 ncont = vertex->GetNContributors();
432 // cout<<" spdver "<<spdver<<" ncont "<<ncont<<endl;
434 shift = currentVertex/c;
435 // cout<<" vertex shif "<<shift<<" vertex "<<spdver<<" IsFromVertexer3D "<<fverSPD->IsFromVertexer3D()<<endl;
438 TTree *treeR = clustersTree;
440 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
442 AliError("Reconstruct Fill ESD >> no recpoints found");
446 AliDebug(1,Form("Start FillESD T0"));
447 TBranch *brRec = treeR->GetBranch("T0");
449 brRec->SetAddress(&frecpoints);
451 AliError(Form("EXEC Branch T0 rec not found"));
456 Double32_t amp[24], time[24], ampQTC[24], timecorr[24];
458 for(Int_t i=0; i<24; i++)
459 amp[i]=time[i]=ampQTC[i]=timecorr[i]=0;
461 Double32_t timeClock[3];
462 Double32_t zPosition = frecpoints -> GetVertex();
463 Double32_t timeStart = frecpoints -> GetMeanTime();
464 timeClock[0] = frecpoints -> GetT0clock() ;
465 timeClock[1] = frecpoints -> GetBestTimeA() + shift;
466 timeClock[2] = frecpoints -> GetBestTimeC() - shift;
467 for ( Int_t i=0; i<24; i++) {
468 time[i] = frecpoints -> GetTime(i); // ps to ns
470 amp[i] = frecpoints -> GetAmp(i);
471 ampQTC[i] = frecpoints -> AmpLED(i);
474 Int_t trig= frecpoints ->GetT0Trig();
475 pESD->SetT0Trig(trig);
477 pESD->SetT0zVertex(zPosition); //vertex Z position
478 pESD->SetT0(timeStart); // interaction time
479 for(Int_t i=0; i<3; i++)
480 pESD->SetT0TOF(i,timeClock[i]); // interaction time (ns)
481 pESD->SetT0time(time); // best TOF on each PMT
482 pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
484 AliDebug(1,Form("T0: Vertex %f (T0A+T0C)/2 %f #channels T0signal %f ns OrA %f ns OrC %f T0trig %i\n",zPosition, timeStart, timeClock[0], timeClock[1], timeClock[2], trig));
488 AliESDfriend *fr = (AliESDfriend*)pESD->FindListObject("AliESDfriend");
490 AliDebug(1, Form("Writing TZERO friend data to ESD tree"));
493 tcorr = fESDTZEROfriend->GetT0timeCorr();
494 for ( Int_t i=0; i<24; i++) {
495 timecorr[i]=tcorr[i];
496 if(i<12 && time[i]>1) timecorr[i] -= shift*channelWidth;
497 if(i>11 && time[i]>1) timecorr[i] += shift*channelWidth;
499 fESDTZEROfriend->SetT0timeCorr( timecorr) ;
500 fESDTZEROfriend->SetT0ampLEDminCFD(amp);
501 fESDTZEROfriend->SetT0ampQTC(ampQTC);
502 fr->SetTZEROfriend(fESDTZEROfriend);
509 } // vertex in 3 sigma